Question

Let u = <-6, 3>, v = <-1, -6>. Find 4u + 2v.

Answer 1

< - 26 , 0 >

multiply the components of u by 4 and the components of v by 2

4< - 6, 3> + 2< - 1, -6 >

= < - 24 , 12 > + < - 2, - 12>

now add corresponding components

= < - 24 - 2, 12 - 12 > = < - 26, 0 >